写给大忙人的jdk8到手了,第一件事情就蒙蔽了,mac装的jdk7,切换jdk的功能要整出来才行,下好jdk8up101安装,假装几行代码搞定
目标
在命令行下,可以通过命令’jdk6’, ‘jdk7’,’jdk8’轻松切换到对应的Java版本, 默认初始设置为jdk7。
做法
1.首先安装所有的JDk:
验证
min-xufpdeMacBook-Pro:~ min_xu$ java -version
java version “1.7.0_79”
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)
min-xufpdeMacBook-Pro:~ min_xu$ vim .bash_profile
min-xufpdeMacBook-Pro:~ min_xu$ source .bash_profile
min-xufpdeMacBook-Pro:~ min_xu$ java -version
java version “1.8.0_101”
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.101-b13, mixed mode)
min-xufpdeMacBook-Pro:~ min_xu$ jdk7
min-xufpdeMacBook-Pro:~ min_xu$ java -version
java version “1.8.0_101”
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.101-b13, mixed mode)
min-xufpdeMacBook-Pro:~ min_xu$ source .bash_profile
min-xufpdeMacBook-Pro:~ min_xu$ java -version
java version “1.7.0_79”
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)
min-xufpdeMacBook-Pro:~ min_xu$
原文:https://www.cnblogs.com/lijianming180/p/12325445.html